<!doctype html>
<html>
<head>
    <title>HTML Layout</title>
    <link rel="stylesheet" href="css/spa.css" type="text/css"/>
    <style>
        .spa-shell-head, .spa-shell-head-logo, .spa-shell-head-acct,
        .spa-shell-head-search, .spa-shell-main, .spa-shell-main-nav,
        .spa-shell-main-content, .spa-shell-foot, .spa-shell-chat,
        .spa-shell-modal {
            position : absolute;
        }
        .spa-shell-head {
            top    : 0;
            left   : 0;
            right  : 0;
            height : 40px;
        }
        .spa-shell-head-logo {
            top        : 4px;
            left       : 4px;
            height     : 32px;
            width      : 128px;
            background : orange;
        }
        .spa-shell-head-acct {
            top        : 4px;
            right      : 0;
            width      : 64px;
            height     : 32px;
            background : green;
        }
        .spa-shell-head-search {
            top        : 4px;
            right      : 64px;
            width      : 248px;
            height     : 32px;
            background : blue;
        }

        .spa-shell-main {
            top    : 40px;
            left   : 0;
            bottom : 40px;
            right  : 0;
        }
        .spa-shell-main-content,
        .spa-shell-main-nav {
            top    : 0;
            bottom : 0;
        }
        .spa-shell-main-nav {
            width  : 250px;
            background : #eee;
        }
        .spa-x-closed .spa-shell-main-nav {
            width  : 0;
        }

        .spa-shell-main-content {
            left  : 250px;
            right : 0;
            background : #ddd;
        }
        .spa-x-closed .spa-shell-main-content {
            left : 0;
        }

        .spa-shell-foot {
            bottom : 0;
            left   : 0;
            right  : 0;
            height : 40px;
        }
        .spa-shell-chat {
            bottom     : 0;
            right      : 0;
            width      : 300px;
            height     : 15px;
            background : red;
            z-index    : 2;
        }
        .spa-shell-modal {
            margin-top    : -200px;
            margin-left   : -200px;
            top           : 50%;
            left          : 50%;
            width         : 400px;
            height        : 400px;
            background    : #fff;
            border-radius : 3px;
            z-index       : 1;
        }
    </style>
</head>
<body>
<div id="spa">
    <div class="spa-shell-head">
        <div class="spa-shell-head-logo"></div>
        <div class="spa-shell-head-acct"></div>
        <div class="spa-shell-head-search"></div>
    </div>
    <div class="spa-shell-main">
        <div class="spa-shell-main-nav"></div>
        <div class="spa-shell-main-content"></div>
    </div>
    <div class="spa-shell-foot"></div>
    <div class="spa-shell-chat"></div>
    <div class="spa-shell-modal"></div>
</div>
</body>
</html>
